| In millions, except per share items | Sep-30-21 | Jun-30-21 | Mar-31-21 | Dec-31-20 | Sep-30-20 | Jun-30-20 | Jun-05-20 | Mar-31-20 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 8-K | 10-Q |
| Revenues: | | | | | | | | |
| Revenues | 142.0 | 138.0 | 97.0 | 86.0 | 107.0 | 72.0 | 72.0 | 146.0 |
| Revenues growth | 32.7% | 91.7% | -33.6% | -49.4% | -50.2% | | -67.1% | -29.8% |
| Operating Expenses: | | | | | | | | |
| Cost of goods and services | | | | | | | | |
| Property tax, insurance and other | 10.0 | 13.0 | 14.0 | 14.0 | 14.0 | 15.0 | 15.0 | 16.0 |
| Management and royalty fees | 14.0 | 14.0 | 9.0 | 8.0 | 11.0 | 7.0 | 7.0 | 14.0 |
| Corporate general and administrative | 10.0 | 7.0 | 7.0 | 7.0 | 7.0 | 6.0 | 6.0 | 8.0 |
| Depreciation and amortization | 33.0 | 37.0 | 38.0 | 38.0 | 39.0 | 42.0 | | 40.0 |
| Gain on sales of real estate | -29.0 | -42.0 | -10.0 | -12.0 | -27.0 | -9.0 | | -23.0 |
| Gain on casualty | | -2.0 | -1.0 | | -4.0 | -1.0 | | -2.0 |
| Impairment loss | 4.0 | | | | | 52.0 | 52.0 | 2.0 |
| Total Operating Expenses | 120.0 | 103.0 | 123.0 | 123.0 | 112.0 | 167.0 | 58.0 | 158.0 |
| Operating income (loss) | 22.0 | 35.0 | -26.0 | -37.0 | -5.0 | -95.0 | -95.0 | -12.0 |
| Operating margin | 15.5% | 25.4% | -26.8% | -43.0% | -4.7% | -131.9% | -131.9% | -8.2% |
| |
| Other Income (Expense): | | | | | | | | |
| Interest expense | -6.0 | -7.0 | -7.0 | -8.0 | -9.0 | -12.0 | | -14.0 |
| Other income, net | 1.0 | | 2.0 | | 3.0 | -1.0 | -1.0 | 3.0 |
| Total Other Expenses | -5.0 | -7.0 | -5.0 | -8.0 | -6.0 | -13.0 | -1.0 | -11.0 |
| Income (loss) before income taxes | 17.0 | 28.0 | -31.0 | -45.0 | -11.0 | -108.0 | | -23.0 |
| Income tax benefit | | | | 3.0 | 3.0 | 1.0 | 1.0 | 2.0 |
| Net income (loss) | 17.0 | 28.0 | -31.0 | -42.0 | -8.0 | -107.0 | -107.0 | -21.0 |
| |
| Weighted average common shares outstanding: | | | | | | | | |
| Weighted average common shares outstanding - basic (in shares) | 57.1 | 57.0 | 57.0 | 56.6 | 56.7 | 56.6 | 56.6 | 56.5 |
| Weighted average common shares outstanding - diluted (in shares) | 61.3 | 58.5 | 57.0 | 56.6 | 56.7 | 56.6 | 56.6 | 56.5 |
| |
| Earnings (loss) per share: | | | | | | | | |
| Basic earnings (loss) per share (in usd per share) | $0.30 | $0.49 | ($0.54) | ($0.74) | ($0.14) | ($1.89) | ($1.89) | ($0.37) |
| Diluted earnings (loss) per share (in usd per share) | $0.28 | $0.48 | ($0.54) | ($0.74) | ($0.14) | ($1.89) | ($1.89) | ($0.37) |